DC training?

I saw a this training that has you do like 10-12 reps then rest for 15-20 sec then do 6-8 reps wait for 15-20 sec and then finish with 2-4 reps. now I have tried this with the weight I normally w/o with and it was tough but I just didnt know if it was enough to build? should I be doing more and dose anyone else do this kind of training? would love some feed back!! thanks

Check out www.intensemuscle.com. The home of DC. A ton of info on the principles of DC. Its a great program but a bit more involved than just doing the sets like that. Most of the sets are structured like you wrote, you just need some more background info.